afternoon tea vs teatime

afternoon tea

noun
  • A formal afternoon meal comprising light snacks, accompanied by tea. 

  • A small meal or snack eaten between lunch and dinner (supper); a period of time set aside for this purpose, taken as a break from work or from a conference. 

teatime

noun
  • The traditional time, in the late afternoon, for serving tea (the meal). 

How often have the words afternoon tea and teatime occurred in a corpus of books? (source: Google Ngram Viewer )